鄂尔多斯盆地张岔地区长6油层组沉积微相研究  

Sedimentary Microfacies of Chang 6 Oil-bearing Member in Zhangcha Area,Ordos Basin

作　　者：朱苗苗[1] 王安立[1] 宋元威 陶莎[1] 

机构地区：[1]西安石油大学油气资源学院,陕西西安710065 [2]陕西延长石油集团研究院,陕西西安710077

出　　处：《辽宁化工》2012年第2期172-174,共3页Liaoning Chemical Industry

摘　　要：根据研究区140余口井的测井、录井及大量分析化验资料,结合各种相标志,利用沉积相综合研究方法系统划分了本区延长组长6油层组的沉积微相类型,分析了沉积微相与油气分布的规律。研究表明:本区长6油层组主要发育三角洲前缘亚相[1],微相主要为水下分流河道、河口坝以及分流间湾等。水下分流河道砂体垂向叠加,厚度较大,为油气富集的主要场所;通过对砂体展布特征的研究,为下一步的勘探开发提供了依据。According to well logging for more than 140 wells and lots of laboratory analysis data,combined with a variety of facies marks,division of the Chang 6 oil-bearing member's sedimentary microfacies types was carried out;sedimentary microfacies and oil-gas distribution were analyzed.The results show that: the Chang 6 oil-bearing member has mainly developed delta front subfacies,microfacies are mainly underwater distributary channel,mouth bar and distributary bay.Underwater distributary channel sand body has stacked in vertical direction and has large thickness,it's main place for oil and gas enrichment;the research of distribution characteristics of sand body can provide a basis for next exploration and development.

关 键 词：鄂尔多斯盆地 张岔地区 长6油层组 沉积微相 

分 类 号：TE122[石油与天然气工程—油气勘探]